she calls the massachusetts freshman senator clinton's biggest nightmare. editor joins me now, thank you very much. how serious do you think this would be? i know elizabeth warren is saying she's not running, won't do this. a lot of people in the party not only want to see a challenge to hillary clinton but want to see a challenge even if it isn't realized. they just want to make sure she doesn't move too far to the center. >> that's exactly right. there's three questions to think through as we have this conversation. one, has the party changed since the last time hillary ran in 2008. i think all the polling data suggests it has. it's much more populace, rank and file democrats skeptical of power and influence of large corporations, more skeptical of wall street in general. clearly the data bears out a movement among the rank and file. two, would this present a problem for hillary clinton? no question it would. going back to the anyone 90s when her husband ran for lot o them some of the intellectual architects of their economic policy and that continues to